Does blue light actually influence your health? Blue light before bedtime can make it harder to sleep, and the screens on phones, computers and televisions give out a lot of blue light. It is true. But if you think blue light as a main problem influencing your sleep or your eye health, it’s time to think in another way.
A researcher says that blue light is part of sunlight, and your eyes are under the sunshine all the time. You’re fine. There are studies of mice that have found blue light can be bad for the eyes, but mice are nocturnal creafures(夜行性动物) whose eyes are different from ours. In a sense, their eyes can protect themselves.
However, adding more protection isn’t likely to help. You can buy glasses to stop the blue light, but the researcher points out that the way will waste your money. You could get the same effect just by holding your phone far from your face. Try it now and see if you notice a difference. No? Then it shouldn’t surprise you that a recent research result said that blue—blocking(防蓝光的) glasses have no special effect(影响) on sleep quality(质量).
If you’re worried about your eye health or your ability to get to sleep on time, you already know what to do: put the screens away at bedtime. Read a book or find something else to do. While you’re using screens, take a 20—second break every 20 minutes.
【小题1】We can avoid being in fluenced by blue light when we ________.
| A．use phones | B．watch TV | C．go out at night | D．stay at home |
【小题2】We learn from the studies of mice that _________.
| A．mice can protect their eyes | B．mice can’t see things clearly at day time |
| C．blue light is harmful to mice’s eyes | D．mice have the same eyes with humans |
【小题3】It has the same effect as buying a blue—blocking glasses to ________.
| A．hold phones far from our face | B．eat more vegetalbes every day |
| C．have a pair of normal glasses | D．do eye exercises before sleeping |
【小题4】________ can not help improve your ability to get to sleep on time.
| A．Putting your phone away | B．Reading a book |
| C．Taking breaks | D．Having a conversation |
【小题5】According to the passage, we know ________.
| A．that blue light influences our health | B．the facts about blue light |
| C．how to take care of our eyes | D．that blue light is bad for nocturmal creatures |
